736072906 has 4 divisors (see below), whose sum is σ = 1104109362. Its totient is φ = 368036452.

The previous prime is 736072879. The next prime is 736072913. The reversal of 736072906 is 609270637.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 466948881 + 269124025 = 21609^2 + 16405^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184018225 + ... + 184018228.

Almost surely, 2^736072906 is an apocalyptic number.

736072906 is a deficient number, since it is larger than the sum of its proper divisors (368036456).

736072906 is a wasteful number, since it uses less digits than its factorization.

736072906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368036455.

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 736072906 is about 27130.6635746345. The cubic root of 736072906 is about 902.9012980438.

The spelling of 736072906 in words is "seven hundred thirty-six million, seventy-two thousand, nine hundred six".